What wrong ?
julia> o=open("string.txt","w")
IOStream(<file string.txt>)
julia> write(o,b)
12
julia> close(o)
julia> o=open("string.txt")
IOStream(<file string.txt>)
julia> temp=readline()
"\r\n"
julia> temp=readline(o)
"sa sdś aa,1"
julia>
julia> temp[6]
'ś'
julia> temp[7]
ERROR: UnicodeError: invalid character index
in slow_utf8_next(::Array{UInt8,1}, ::UInt8, ::Int64) at
.\strings\string.jl:67
in next at .\strings\string.jl:92 [inlined]
in getindex(::String, ::Int64) at .\strings\basic.jl:70
julia> temp
"sa sdś aa,1"
julia> eltype(temp)
Char
julia> typeof(temp)
String
julia> temp[3]
' '
Paul
